Having released all of the animals, Smith and the Robot make a perilous journey back to the ship. The Robinsons don't understand why the Keeper let his animals out, but they learn the truth when the alien comes to their ship and he tests them for a guilty conscience. Smith blubbers that he did it for the Robinsons, and that the Keeper would take them off the planet rather than leave them at the animals' mercy. The Keeper says he will leave the animals loose until the Robinsons turn over Will and Penny.